A simple explanation of how money moves around the banking system (2013)
gendal.me
gendal.me
Why is this so? Sure in decades past it might have been expensive to send so many messages, but today it should be easily accomplished with moderate hardware. Wikipedia says SWIFT did about 15M tx/day in Sept 2010. That seems pretty miniscule as far as hardware load goes.
I imagine they dont mind paying a lot because they dont actually need to send that much information.
http://www.swift.com/solutions/pricing/fs_pricing_easier_200...
That looks to be a bit old version of their prices.
I've met some of the nice Belgian guys that run their support - not a job I'd really like. If there's a business where you need to be conservative, and defects are really not ok in any way, it's theirs.
All the per-transaction prices are below 15 euro cents. Banks charge you many £/€ for a SWIFT transfer because they can, not because of what it costs; usually to subsidise the existence of branches.
Edit: I see another commenter has hit the same link :)
For anyone interested in how US domestic payment systems work (checks, ACH, Visa/Mastercard) check out Payment Systems in the US by Carol Benson. It is the bible.
This changed to a large extent when Bitcoin came about and people (technologists especially) began asking what is money and how does it move.
The average person still has no idea though.